| (19) |
 |
|
(11) |
EP 2 468 208 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
05.09.2012 Bulletin 2012/36 |
| (43) |
Date of publication A2: |
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27.06.2012 Bulletin 2012/26 |
| (22) |
Date of filing: 21.12.2011 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (84) |
Designated Contracting States: |
|
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL
NO PL PT RO RS SE SI SK SM TR |
|
Designated Extension States: |
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BA ME |
| (30) |
Priority: |
22.12.2010 US 975915
|
| (71) |
Applicant: Biosense Webster (Israel), Ltd. |
|
Yokneam 20692 (IL) |
|
| (72) |
Inventors: |
|
- Montag, Avram Dan
32298 Haifa (IL)
- Bar-Tal, Meir
32240 Haifa (IL)
- Bar-On, Tal Haim
36056 Kiryat Tivon (IL)
|
| (74) |
Representative: Carpmaels & Ransford |
|
One Southampton Row
London
WC1B 5HA
London
WC1B 5HA (GB) |
|
| |
|
| (54) |
Compensation for magnetic disturbance due to fluoroscope |
(57) A method, consisting of generating, using a plurality of magnetic transmitters, a
magnetic field in a region and introducing a field perturbing element into the region.
The method includes characterizing multiple images of each magnetic transmitter in
the field perturbing element, and calculating a reaction magnetic field in the region
based on the characterized images. The method further includes positioning a probe
in the region and measuring a perturbed magnetic field at the probe, and determining
a location of the probe in response to the measured perturbed magnetic field and the
calculated reaction magnetic field.